WASHINGTON (The New York Times) – President Obama made addressing climate change the most prominent policy vow of his second Inaugural Address, setting in motion what Democrats say will be a deliberately paced but aggressive campaign built around the use of his executive powers to sidestep Congressional opposition.

“We will respond to the threat of climate change, knowing that failure to do so would betray our children and future generations,” Mr. Obama said on Monday at the start of eight sentences on the subject, more than he devoted to any other specific area. “Some may still deny the overwhelming judgment of science, but none can avoid the devastating impact of raging fires, and crippling drought, and more powerful storms.”

The central place he gave to the subject seemed to answer the question of whether he considered it a realistic second-term priority. He devoted scant attention to it in the campaign and has delivered a mixed message about its importance since the election.

Mr. Obama is heading into the effort having extensively studied the lessons from his first term, when he failed to win passage of comprehensive legislation to reduce emissions of the gases that cause global warming. This time, the White House plans to avoid such a fight and instead focus on what it can do administratively to reduce emissions from power plants, increase the efficiency of home appliances and have the federal government itself produce less carbon pollution.

Mr. Obama’s path on global warming is a case study in his evolving sense of the limits of his power and his increased willingness to work around intense conservative opposition rather than seek compromise. After coming to office four years ago on a pledge to heal the planet and turn back the rise of the seas, he is proceeding cautiously this time, Democrats said, intent on making sure his approach is vetted politically, economically and technologically so as not to risk missing what many environmental advocates say could be the last best chance for years to address the problem.

The centerpiece will be action by the Environmental Protection Agency to clamp down further on emissions from coal-burning power plants under regulations still being drafted — and likely to draw legal challenges.

The administration plans to supplement that step by adopting new energy efficiency standards for home appliances and buildings, a seemingly small advance that can have a substantial impact by reducing demand for electricity. Those standards would echo the sharp increase in fuel economy that the administration required from automakers in the first term.

The Pentagon, one of the country’s largest energy users, is also taking strides toward cutting use and converting to renewable fuels. [more]